Answer: the first option
Step-by-step explanation:
Answer: ![BC=14.8](https://tex.z-dn.net/?f=BC%3D14.8)
Step-by-step explanation:
By definition, an Isosceles triangle has two equal sides and its opposite angles are congruent.
Observe the figure attached, where the isosceles triangle is divided into two equal right triangles.
So, in this case you need to use the following Trigonometric Identity:
![sin\alpha =\frac{opposite}{hypotenuse}](https://tex.z-dn.net/?f=sin%5Calpha%20%3D%5Cfrac%7Bopposite%7D%7Bhypotenuse%7D)
In this case, you can identify that:
![\alpha =\angle BAD=\angle CAD=18\°\\\\opposite=BD=CD=x\\\\hypotenuse=AB=AC=24](https://tex.z-dn.net/?f=%5Calpha%20%3D%5Cangle%20BAD%3D%5Cangle%20CAD%3D18%5C%C2%B0%5C%5C%5C%5Copposite%3DBD%3DCD%3Dx%5C%5C%5C%5Chypotenuse%3DAB%3DAC%3D24)
Substituting values, and solving for "x", you get:
![sin(18\°)=\frac{x}{24}\\\\24*sin(18\°)=x\\\\x=7.416](https://tex.z-dn.net/?f=sin%2818%5C%C2%B0%29%3D%5Cfrac%7Bx%7D%7B24%7D%5C%5C%5C%5C24%2Asin%2818%5C%C2%B0%29%3Dx%5C%5C%5C%5Cx%3D7.416)
Therefore, the length of BC rounded to nearest tenth, is:
![BC=2(7.416)=14.8](https://tex.z-dn.net/?f=BC%3D2%287.416%29%3D14.8)
Answer:
write a letter to your sister give her three reasons why you want to go to a day school
7/8 is greater than 5/6
i hope this helps u!
If it is an isosceles triangle then it has 2 congruent sides.